DESCRIPTION : we are Professional China Flange bolts Manufacturers and Flange bolts suppliers, we focused on R & D and production of Flange bolts and parts,Our company owns several sets of multi-station molding machines, respectively 84L, 134L, 135L, 14B6S and other ancillary equipment.website：https://www.china-bolt.net/product/flange-bolts-product/